How to configure TLS communication and add CA certificate in Gurux DLMS Director

By Parthasarathi, 17 October, 2025

Forums

Hello,

I am working on a smart energy meter project and would like to establish a secure TLS communication using Gurux DLMS Director.

I have a few questions regarding the configuration:

How can I add or configure the CA certificate, client certificate, and private key in the Gurux DLMS Director tool?

Where should these certificates be placed — under Integration settings or Device credentials?

Is there any documentation or example available for setting up TLS/SSL (Port 4059) communication with a DLMS meter using Gurux tools?

Are there any specific certificate formats (like .pem, .crt, or .der) required by the tool?

Any guidance or example configuration would be really helpful.

Hi,

This should describe what you need to do to use public/private keys.

The DLMS PDU is encrypted, not the communication channel.

BR,
Mikko